Table 1.

Baseline demographic and clinical characteristics of 43 patients with cement-augmented bone cement-injectable cannulated pedicle screws in the osteoporotic spine.

Variable	Value
Mean age, years; mean±SD (range)	60.4±11.6 (46 to 82)
Gender (n; M:F)	13:30
Mean follow-up duration, months; mean±SD (range)	15.7±5.6 (6-35)
Mean BMD, T-score; mean±SD (range)	-3.13±0.62 (-2.5 to -4.7)
Preoperative diagnosis, n (%)/the number of CICPS, n
Lumbar spondylolisthesis	17*) (49.0%)/49
Lumbar disc herniation/lumbar spinal stenosis	15 (34.9%)/38
Vertebral fracture	7 (16.3%)/20
Ankylosing spondylitis	4 (9.3%)/18
Total	43 (100%)/125

CICPS: bone cement-injectable cannulated pedicle screw.

*: one patient had a solid screw that loosened after the first operation; the second operation used a CICPS.